Malicious PDF — malware analysis report

Static analysis result for SHA-256 28a82d8b239ad8e0…

MALICIOUS

PDF

43.5 KB Created: 2021-05-19 23:14:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8fa0c8cb39c5b9d45639c6b09724393 SHA-1: 71c256cf3370ac61c3f5fb4ebe0c8171471c0e6b SHA-256: 28a82d8b239ad8e0b288fda91e731d9c13b54ba7bffa8382b8f26e0e92cfbce3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure associated with game hacks and generators. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure of free game items suggest a phishing or social engineering attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/1094591345/pokemon-go-3-free-raid-passes-game-hack In PDF document text
    • http://pdapanache.com/images/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/robloxhacks_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047e2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47E2 28016 bytes
SHA-256: 774600025f6601f2d0eb94aec8340e8686465741e8ce3d986f71ff9f1cb52979
font_01_sfnt_off00008711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8711 18540 bytes
SHA-256: c4c87d545c9cddb0ca861adc6a0873f5bb6c10c250243dc47f9da8ece5b5b4c6

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